George eastman



(No Model.)

G EASTMAN ROLLER HOLDER FOR PHOTOGRAPHIG FILMS.

Patented Aug. 5, 1890.

n1: Mom raven: 00., Imam-mum, wymma'rnu, 0. c4

UNITED STATES PATENT OFFICE.

GEORGE EASTMAN, OF ROCHESTER, NEW YORK, ASSIGN OR TO THE EAST- MAN DRY PLATE AND FILM COMPANY, OF SAME PLACE.

ROLLER-HOLDER FOR PHOTOGRAPHIC FILMS.

SPECIFICATION forming part of Letters Patent No. 433,775, dated August 5, 1890.

Application filed June 12, 1889.

.To all whom, it may concern:

Be it known that I, GEORGE EASTMAN, of the city of Rochester, county of Monroe, and State of New York, have invented certain new and useful Improvements in Roll-Holders for Photographic Films; audI do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to figures of reference marked thereon.

My present invention relates to roll-holders for photographic films, and has particularly for its object to improve and simplify the construction and operation of the film-marking device, whereby the operator is enabled to mark the film at the points where it is to be severed to form the separate negatives; and to this end it consists in certain novelties of construction and combinations of parts, all as will be hereinafter described, and the novel features pointed out particularly in the claims at the end of this specification.

In the drawings, Figure 1 is a sectional view through the casing of a roll-holder, showing the application of my invention thereto; Fig.

2, an enlarged end view of the measuringroller and marker, the frame being indicated in dotted lines; Fig. 3, a side view of said roll, and Fig. at a section 011 the line w 00 of Fig. 2; Fig. 5, a view of the other end of the measuring-roll, showing an indicating device.

Similar figures of reference in the several figures indicate similar parts.

In the present embodiment of my invention I have shown it applied to the form of rollholder shown in patents granted May 5, 1885, to Eastman and Walker, wherein a removable frame supports the film spool and reel, the section in Fig. 1 being taken close to one side of the casing with said frame shown in elevation; but it is obvious that it could be applied to any form equally well.

The figure 1 represents the holder-casing provided with a front 2, in which is the usual exposing aperture and slide 3, and the back piece 4 is fastened to this casing in the usual or any preferred manner.

5 represents the frame secured to the back 4 by suitable catches, and removable there- Serial No. 314,052, (No model.)

with and therefrom, having at the front the film support or platen 6, and in which the winding-reel 7 and supply-spool 8 are journaled in the manner described in said patent. At the ends of platen 6 are the usual rollers 9 and 10, the former designated as the measuring-roller, as it measures off and marks the film into separate exposures. This measuring-roller is preferably -provided with the usual prick-points 11 11 in the surface, 50 adapted to perforate the film at each revolu tion, and its circumference is such relative to the length of platen 6 that a determined number of revolutions caused by the passage of the film over it will measure off a single exposure the length of the exposing-aperture. At one end the measuring-roller is provided with a suitable indicating device, preferably in the form of a pin 12, arranged, when the roll is rotated, to move a spring 13 away from the under side of platen 6, and by its passage out of the way allow it to snap back against said platen, thus making aclick and informing the operator that a quantity of film equal to the circumference of the measuring-roll 5 has been wound over the platen.

The construction of the parts described is substantially the same as that of the rollholders now on the market, the measuringroller being so proportioned relative to the length of the exposingaperture in the casing that four revolutions are necessary to wind forward an exposure of film, necessitating four indications or perforations in the film.

These indications being alike, it is necessary v to count and sever the film at every fourth mark 5 and as it is desirable when developing film to have several pieces in the developingtray at one time, in practical operation it is customary to cut up the film before begino ning operations, and should any mistake be made in the counting a number of negatives would be spoiled. This objection can readily be remedied in small-sized roll-holders by making the measuring-roll of such size that 5 a single revolution will mark the film for one exposure; but in large holders this is impracticable on account of the undue increase in the size of the roller, and it is particularly to provide a means for marking the film at the proper place and thereby preventing the liability of cutting the negatives that my present invention is designed.

Near one end of the measu rin g-roller is p rovided a small prick-pin 15, extending through the roller and connected at its inner end to a spring 16, formed, preferably, of a small wire lying in a recess below the .periphery of the roller, one end being fastened to the roller while the other extends beyond the end of the roller through a slot 17, in a plate 18 secured thereto. The connection between the pin and spring is preferably formed by providing the former with a loop or eye, through which the spring is passed, and the tendency of the latter is such as to keep the sharpened end of the prick-pin below the periphery of the roller and against the end of the slot in the plate 18, which constitutes a stop. The pin 15 is preferably in line with the pins 11 011 the roller when the latter are employed, though they may be dispensed with, if desired. Still I prefer to employ them as a means for marking the film, so that, should it be necessary to employ less than a full exposure of film, it may be accomplished and the quantity Wound forward determined and marked by their use in connection with the audible indicator, as will be readily understood by one skilled in the art.

As a means for projecting the prick pin 15 when desired, usually when a single expos nre of film has been wound forward I provide an arm or lever 20, pivoted at 21 to the I frame and provided at one end with a curved portion 22, arranged in such position relative to the roller and pin as that when the latter is in line with the end of the platen a movement of the arm 20 upward will cause the projection of the pin and the perforation of the paper. This arm is provided 011 one side with a lug or projection 23, arranged to be operated upon by a pin 24:, passing through and guided by suitable perforations in the frame, the movement of the pin being limited by a projection 25, adapted to engage the frame, as shown. For the purpose of operating this rod from the exterior of the casing I arrange a button 26 in a perforation therein, in position to co-operate with the rod end, said button being projected by a spring 27, to which it is secured.

The operation will now be understood. The operator, by means of a suitable key applied to the end of the winding-reel winds forward the film, the click-indicator sounding at each revolution of the measuring-rollers,

as usual, and when he has counted four clicksin the present instance indicating the passage of a full exposure of film-he presses upon button 26, and as at this point the pin 15 is at the end of the platen the arm 20 will operate upon the spring and cause its projection of the pin, thus marking the film by perfo- 5 rating it.

marked at each revolution of the measuringroller, but may be marked in a distinctive manner at the end of the exposures, or at any multiple of the circumference of said roller, thus giving an absolute and a variable mark.

It will be understood that it is not essential to employ the prick-points 11 at all, but I prefer to use them, or at least one, on the end of the roller opposite the manually-operated point, as it enables the film to be readily severed on straight lines without first creasing it across.

Vhile I have shown my film marker as applied to the n'ieasuring-roller of a roll-holder, I do not desire to be confined to this location of it, as the invent-ion oomprehends a mark ing device capable of operation from the exterior of the casing, particularly when employed with some form of indicator, such as an audible one shown, or a visual one sometimes employed, indicating when a single exposure or definite quantity of film has been wound forward in front of the exposing-aper-- ture.

I claim as my invention- 1. In a roll-holder, the combination, with suitable film winding and supporting devices, of a film-marker operated from the exterior of the holder-casing, substantially as described. 2. In a roll-holder, the :combination, with suitable film winding and supporting devices, of a film-marker consisting of a prick point operated from the exterior of the holdercasting, substantially as described.

3. In a roll-holder, the combination, with suitable film winding and supporting devices, of a film-marker consisting of a prick-point adapted to mark the film from the rear side, operated from the exterior of the holdercasing, substantially as described.

4. In a roll-holder, the combination, with suitable film winding and supporting devices, a roller over which the film passes, and a filmmarker thereon normally below the periphery thereof, of a device operated from the exterior of the casing for moving said marker to mark the film, substantially as described.

5. In a 1Olll10l(l6l',13ll6 combination, with suitable film winding and supporting devices, a roller over which the film passes, a filmmarker and a spring for holding it normally below the periphery thereof, of a device operated from the exterior of the holder-casing for projecting said marker against the tension of the spring, substantially as described.

6. In a roll-holder, the combination, with suitable film winding and supporting devices, of a roller over which the film passes, a filmmarker normally below the periphery of the roller, and means for projecting said marker, substantially as described.

7. In a roll-holder, the combination, with suitable film winding and supporting devices, of a roller over which the film passes, having a fixed film-marker near one end, a movable ICC IIO

marker normally below the periphery of the roller, and means for projecting said movable marker, substantially as described.

8. In a roll-holder, the combination, with suitable film winding and supporting devices,

of an indicating device denoting the amount of film wound forward, and a film-marking device operated from the exterior of the holder-casing, substantially as described.

9. In a roll-holder, the combination, with suitable film winding and supporting devices, of a roller over which the film passes having a fixed fi1m-1narker, an indicator, and a movable film-marker operated from the exterior of the holder-casing.

10. In a roll-holder, the combination, Wit suitable film winding and supporting devices, of a roller over which the film passes, a marking-pin thereon, and a spring-pin projecting from the end, the pivoted arm, the rod engaging it, and the spring-projected button operated from the exterior of the holder-casing.

11. In a roll-holder, the combination, with suitable film winding and supporting devices, of a roller over which the film passes, the marking-pin and the spring-pin projecting from the roller end, the plate on the roller having the perforation for the spring-pin, and means for operating the pin to project the marker, substantially as described.

12. In a roll-holder, the combination, with a casing, a removable frame carrying the film supporting and winding devices, of a film- 

